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builtins.fetchgit: Use proper refs locally

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Eelco Dolstra 2017-07-27 17:02:25 +02:00
parent 6d7de7f3de
commit 69deca194e
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1 changed files with 3 additions and 4 deletions
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7
src/libexpr/primops/fetchgit.cc
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@ -20,15 +20,14 @@ Path exportGit(ref<Store> store, const std::string & uri, const std::string & re
//Activity act(*logger, lvlInfo, format("fetching Git repository ‘%s’") % uri);
std::string localRef = "pid-" + std::to_string(getpid());
std::string localRef = hashString(htSHA256, fmt("%s-%s", uri, rev)).to_string(Base32, false);
Path localRefFile = cacheDir + "/refs/heads/" + localRef;
runProgram("git", true, { "-C", cacheDir, "fetch", uri, rev + ":" + localRef });
runProgram("git", true, { "-C", cacheDir, "fetch", "--force", uri, rev + ":" + localRef });
std::string commitHash = chomp(readFile(localRefFile));
unlink(localRefFile.c_str());
printTalkative("using revision %s of repo ‘%s’", uri, commitHash);
Path storeLink = cacheDir + "/" + commitHash + ".link";